Burring-machine



(No Model.)

P'. G. SARGENT.

BURRING MACHINE.

. Patented Jan. 23, 1883.

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N. Prrins Pamwunwgnpm, washington DA c,

NITED STATES' A*ATENT Prion.

FREDERICK G. SARGENT, OF GRANITEVILL, MASSACHUSETTS.

enRRIluci-lvhficl-lINEl SPECIFICATION forming part of Letters Patent No. 270,988, dated January 23, 1883.`

Application filed February 2l, 1881. (No model.)

To all whom 'it may concern: v

Be it known that I, F. G. SARGENT, of Graniteville, county ot' Middlesex, and StateA of Massachusetts, have invented a new and Improved Burring-Machine, of which the following is a specification.

Myinvention relates to machines for picking and opening the wool and separating the burrs and other foreign substances therefrom; and the object-s ot' myimprovement are to provide more eicient means for removing the heavier parts of the burrs before they have been long acted upon by the main cylinder of themachine or other working parts, and to provide a convenient cleaning device to prevent the airdraft from becoming choked by the longer ber which may lodge against the openings into it. I attain these objects by the mechanism illustrated in the accompanying drawings, in which- Figure l-is a longitudinal vertical section of my machine. Fig. 2 isa front elevation of a portion thereof. Fig. 3 is an elevation of the clearing attachment.

In the drawings, a represents the frame of the machine. B is a swinging perpendicular grating; C, the endless apron, on which the wool being fed to the machine is placed. This apron delivers it t0 the feed-rolls e e, which -feed and hold the ber while the main or picker cylinder D is acting upon it.

E is a horizontal grating placed under the picker-cylinder.

F is a curved perforated metal sheet placed above the picker-cylinder, through which the draft of air caused by the exhaustfan G draws upward the smaller particles of foreign matter loosened by the picker-cylinder.

His a burring-cylinder placed behind the picker-cylinder, and taking the ber from it.

I is a guard-cylinder, which knocks off the pieces of burrs while the ber is held and carried forward by the burr-cylinder. v v

J is a brush-cylinder, which takes the ber from the burring-cylinder and discharges it from the machine through the ue k.

s is an outwardly-inclined board or plate, placed below the perpendicular grating. This plate terminates in the sharp edge o near the picker-cylinder. Y

A is-a brush,whose handle aprojects through the frame of the machine. This brush travels on the guide-rods q q,which are placed parallel `with each other and the perforated plate F, and at such a distance that the bristles of the brush will be depressed into the perforations, so as to loosen any accumulated dirt in the openings. This brush is, by means of its handle extending outside the frame on the side, drawn across and pushed back over the perforated plate at any time without stopping the machine or disconnecting any of its parts from their operative position, so that any loosened particles, instead of falling back onto the working parts of the machine, as they would if its exhaust-fan were stopped or its draft injured by opening the apartment L, in which the brush works, are carried up by the draft of the eX- haust-fan and discharged from the machine.

When grate-bars parallel to the axis of the picker-cylinder are uscdin the ordinary manner, coming up substantially to the feed-rolls, the larger burrs,which are first loosened by the cylinder striking the wool held by the feedrolls, are apt to strikesuch grate-bars and y back into the ti ber carried along by the pickercylinder, and become incorporated with it, so

as to not be easily removed therefrom. At the same time the grate-bars parallel to the axis ofthe picker-cylinder are more effective to remove heavier particles of dirt,which will easily pass between them, and which are disengaged and drop down somewhat after the burrs first mentioned. To overcome these objections I place the grate-bars B, which are parallel to the direction ot' motion ofthe picker-cylinder teeth, immediately below the feed-rolls,where they will perform the most efficient service in allowing the burrs to pass through them onto the inclined board s, and in placing next below the board s the perforated bottom or bars E, parallel'with the axis of the picker-cylinder. The position cf the vertical hars B with relation to the board s also enables the latter to assist in carrying oft' the burrs. The-perpendicular grating B terminates upon the outwardly-inclined guidefboard s slightly farther from the picking-cylinder D than the horizontal grating E, so that any burr falling against one of the perpendicular bars, not having sufcient velocity or force to be deflected sidewise and pass through between the bars, will,

IOO

by sliding down it, come in contact with the boards, and, if it has sufficient Weight to resist the air-current at all, will either slide out at once upon the board or remain until some current of air or heavier falling particles of dirt disturb its balance against the bar, when it will slide out of the machine. The perpendicular grating, unlike the horizontal, does not present one bar above another in the way of the falling burrs, and the openings between the bars are not each narrowed by the width of the preceding bar on the line of a falling body. The perpendicular grating B is made adjustable by being hung upon a rock-shaft, l), and it can be swung outward and downward by the attendant, so as to permit any accumulating substances to fall out, or to permit of its being cleaned by hand without endangering the operator or stopping the machine.

The arrows seen in the drawings indicate the direction of motion of the moving parts or aircurrents as appears from their position.

What l claim is- 1. Thecombinatiomwiththefeed-rollseeand picker-cylinder D, of the perpendicular grating B, placed below the feedrolls, board s, and horizontal grating or perforated sheet E, substantiall y as described.

2. The combination ofthe feed-rolls e e and picker-cylinder D with the perpendicular grating B and outwardly-inclined guide board s, having the interprojecting edge o, and the cylinder-case beneath the board, substantially as described.

3. lhe combination of the picker-cylinder D, exhaust-fan G, and perforated plate F with the brush A, inclosed in the air-draft chamber, and suitable mechanism for operating the saine, substantially as'described.

yFREDEPJGK G. SARGENT.

Witnesses:

DAVID HALL RICE, N. P.`OCKINGT0N. 

